Intravital Microscopy Analysis of Hepatic T Cell Dynamics
2017
: T cells play critical roles in controlling hepatotropic viral infections and liver tumors. The protective capacity of these cells is mediated by antigen-experienced effector cells and depends on their ability to migrate to and traffic within the liver, recognize pathogen- or tumor-derived antigens, get activated and deploy effector functions.While some of the rules that characterize T cell behavior in the healthy and cancerous antigen-expressing liver have been characterized at the population level, we have only limited knowledge of the precise dynamics of T cell interactions with different kinds of liver cells at the single-cell level. Here, we describe in detail an intravital microscopy technique that allows the analysis of T cell dynamic behavior in the liver of anesthetized mice at high spatial and temporal resolution. A detailed understanding of the spatiotemporal dynamics of T cells within the liver is important for the rational design of targeted immunotherapeutic approaches for chronic liver infections and tumors.
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